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FAQ

How to connect the button battery led lamp beads?
The series resistance can be calculated as follows: R = (supply voltage - Vt) / 20, where Vt is the tube pressure drop.
How does the button battery charge?
You can use three general 1.5V battery in series to charge it just keep the time very little.
What products with more button batteries?
Button battery CR2025: GP ultra-long-lasting button battery CR2032, 3V, large price excellent, used for mobile phones, Bluetooth headset, remote control toys, massage equipment, power tools, LED flashlight, portable small household appliances and other industrial products.
Motherboard button battery with ordinary battery can it?
With ordinary battery is certainly not work, one is not good to install, the second is the storage period and discharge current are not the same.
What is the type of button battery inside the computer?
Motherboard battery is generally CR2032 or CR2025, CR2032 thick point, CR2025 book point, the voltage is 3V, the same size.
What is a button battery? How to distinguish between good and bad?
Identify from battery performance. Most of the alkaline manganese battery capacity is low, usually less than the national standard 1.55V, short life; easy to leak, corrosion electrical appliances; voltage load characteristics of poor, the battery discharge curve was a sharp decline in slash; easy to produce inflatable, causing the battery "Belly."
Why is the button battery than ordinary battery damage?
Button battery shape small, children often because of curiosity and stuffed into the nasal cavity, ear canal, etc., posing a threat to health. Button batteries for high-energy alkaline batteries, containing a variety of heavy metals, have a strong corrosive, kept in the nasal cavity often cause serious consequences.
Button battery voltage is no 5V?
In addition, there are button-shaped Farah capacitors (role and shape similar to the button battery), that is, 5.5V and 2.7V.